11666432679 has 24 divisors (see below), whose sum is σ = 17105959920. Its totient is φ = 7067237760.

The previous prime is 11666432629. The next prime is 11666432719. The reversal of 11666432679 is 97623466611.

It is not a de Polignac number, because 11666432679 - 2¹⁷ = 11666301607 is a prime.

It is a super-2 number, since 2×11666432679² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11666432629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 921907 + ... + 934475.

It is an arithmetic number, because the mean of its divisors is an integer number (712748330).

Almost surely, 2^11666432679 is an apocalyptic number.

11666432679 is a deficient number, since it is larger than the sum of its proper divisors (5439527241).

11666432679 is a wasteful number, since it uses less digits than its factorization.

11666432679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15151 (or 15140 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 51.

The spelling of 11666432679 in words is "eleven billion, six hundred sixty-six million, four hundred thirty-two thousand, six hundred seventy-nine".